See a detailed discussion of the project results at: www.mcmahonsofmonaghan.org/mcmahon_dna_project.html
And background reading on the Collas and where McMahons fit in
http://www.peterspioneers.com/colla.htm
Recent papers
McMahon DNA – A Genetic Odyssey ………..............… April 2011…………………………Patrick McMahon
http://www.peterspioneers.com/McMahonDNA.pdf
Colla and its wider Diaspora …………………............… January 2012……….……………….Patrick McMahon
http://www.peterspioneers.com/mcmahondiaspora.pdf
Oriel and Thomond McMahon DNA ………………....… November 2012……….……………….Patrick McMahon